Kalvis 4 - Transportation and Storing; Quickly Wearing Parts During Operation; Fuel Types and Features

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7. Transportation and storing
Boilers are stored and transported fastened on a wooden pallet and
wrapped in polythene film if nothing else is provided for in the supply
contract.
Boilers can be transported only in upright position on any type of covered
transport. If weather is dry, open vehicle is also suitable.
Use extra safety means for boiler protection from overturning, scratching
each other. Do not hit, turn, throw the boilers during loading-unloading.
Boilers have to be stored in dry premises without presence of vapours of
chemically active substances.
The product packaging (wood pallet and polyethylene film) recovery must
be in accordance with the environmental requirements and regulations of the
user country. In the extreme case, the wooden pallet can be used as fuel for
this boiler. The boiler fixing to the pallet screws can be used for boiler height
adjustment during installation
8. Quickly wearing parts during operation
Sealing parts from glass fibre; cast iron rings, cast iron firegrate and
internal cast iron doors during operation can wear out, burn out, crack.
You can order these parts from boiler manufacturer or its agents.
9. Fuel types and features
Completely dry wood burning heat actually does not depend on wood
species and is equal to about 4500 kcal/kg. Therefore, at assessment of
different wood species, their relative weight has to be taken into consideration.
Weight of one cubic meter of various wood is as follows:
- oak firewood - 500 kg;
- birch firewood - 450 kg;
- spruce firewood - 330 kg;
- aspen firewood - 330 kg.
The wetter is the firewood, the lower is its caloric content. Wet firewood
caloric content reduction, compared to dry firewood (~20 % moisture) is as
follows:
- 30 % moisture - 10  15 %;
- 50 % moisture - 35  40 %.
Just cut tree has 35  60 % of water. Least water is contained in the tree
cut in the beginning of winter. Hard wood contains less water.
Wood for firewood has to be cut and split. After a year in attic, firewood has
20  25 % of moisture.
After two years, it has 13  17 %, which means that after drying, much less
fuel is needed that when stoking wet wood.
Combustion of 1 kg of average calorific content coal gives about 6500 kcal
(7,56 kWh).